Haptic Snap-Fastener Container for Intuitive Secure Opening

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Solution Overview

Problem

Existing container closures are difficult for authorized users to open intuitively while preventing unauthorized access, especially for visually impaired or acoustically impaired individuals, and lack effective safety features to prevent accidental opening.

Innovation Solution

A container with a snap fastener comprising a ring element and snap element, featuring a haptic mechanism with a haptic element at the gap, allowing intuitive opening guidance through tactile feedback, and optionally including a surmountable end stop to prevent accidental opening.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a snap fastener is used to secure the container, then the container is protected from unauthorized opening, but it becomes difficult for authorized users to open intuitively

Engineering Contradiction:
Improveprevention of unauthorized openingVSAvoidintuitive opening for authorized users
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

The patent employs haptic feedback through a haptic element that interacts with the snap fastener mechanism. When the cover is rotated to the correct opening position, the haptic element generates tactile feedback (clicking or snapping sensation) that intuitively signals to the user that the container is ready to be opened. This feedback mechanism guides authorized users through the opening process without compromising the security against unauthorized opening.

Inventive Principle:
Principle #23Feedback

2Adaptability or versatility

If a haptic mechanism is added to indicate opening position, then accessibility for visually impaired users is improved, but device complexity increases

Engineering Contradiction:
Improveaccessibility for visually impaired usersVSAvoidcomplexity of closure mechanism
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent merges the haptic indication function with the existing snap fastener structure. The haptic element is integrated into the closure mechanism itself, utilizing the rotational movement and positioning already required for opening the container. This combination approach provides accessibility features without adding separate, complex mechanisms, as the haptic feedback is generated through the interaction of existing structural elements during the opening process.

Inventive Principle:
Principle #5Merging (Combining)

3Ease of operation

If a gap is provided in the ring element for release, then the snap fastener can be opened, but the container may be accidentally opened

Engineering Contradiction:
Improverelease of snap fastenerVSAvoidprevention of accidental opening
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

The patent employs asymmetric design in the interaction between the haptic element and the snap fastener components. The haptic element is positioned and shaped to engage with specific features of the ring element and snap element in a non-symmetric manner. This asymmetric configuration ensures that the haptic feedback is only generated at the correct opening position, preventing accidental opening while maintaining easy intentional release. The asymmetric geometry creates a unique tactile signature that guides the user to the proper orientation.

Inventive Principle:
Principle #4Asymmetry

Data Source

PatentEP4624360A1container
Publication Date: 2025.10.01 PHILIP MORRIS PRODUCTS SA
  • EP4624360A1 patent drawingFigure 1~3
  • EP4624360A1 patent drawingFigure 4~7
  • EP4624360A1 patent drawingFigure 8~9

AI summary

A container comprising a body portion and a cover with a snap fastener for the body portion and the cover. The snap fastener comprises a ring element comprising a gap and a snap element interacting with the ring element. The container further comprises a haptic mechanism indicating a release condition of the snap fastener where the cover is detachable from the body portion. The haptic mechanism comprises a haptic element arranged at the gap and arranged above or below the snap element, when the snap fastener is in the snapped condition where the cover is undetachable from the body portion. The snap fastener comprises a ring element comprising a gap and a snap element interacting with the ring element. The container further comprises a haptic mechanism indicating when the snap fastener is in a release condition.