Cigarette Box Lateral Push-Out Opening Mechanism

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Solution Overview

Problem

Conventional cigarette boxes lack visual appeal and innovative opening/closing mechanisms, failing to capture customers' interest.

Innovation Solution

A cigarette box design featuring an outer case with a push window and a movable inner case that protrudes laterally when pushed, allowing for a unique sideways opening and closing mechanism, enhanced by a stopper system to control the turning angle and a pull-up mouth for easy access to cigarettes.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of manufacture

If a conventional hinged-lid package is used for a cigarette box, then the structure is simple and familiar to users, but the package lacks visual appeal and does not arouse customers' interest

Engineering Contradiction:
Improvestructural simplicityVSAvoidvisual appeal
Core Design Contradiction:
Ease of manufactureVSAdaptability or versatility

Solution Approach 1:

The patent transforms the static hinged-lid structure into a dynamic push-out mechanism where the inner case moves laterally relative to the outer case. This dynamic opening/closing action creates visual interest and novelty while maintaining structural simplicity through the use of a straightforward push-window interface and lateral movement path.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The patent transitions from the conventional vertical opening motion (hinged-lid) to a lateral horizontal motion (push-out). This dimensional change in the opening direction provides a fresh user experience and enhanced visual appeal without significantly complicating the overall structure.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

2Adaptability or versatility

If an inner shell is made pivotably movable within an outer shell for swinging movement, then the opening mechanism becomes more innovative, but the device complexity increases

Engineering Contradiction:
Improveopening mechanism innovationVSAvoidmechanism complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

Instead of the inner case pivoting within the outer case (conventional approach), the patent inverts the relationship by having the inner case move laterally in a straight line through a push-window. This inversion simplifies the mechanism by eliminating complex pivoting joints while achieving innovative opening action.

Inventive Principle:
Principle #13The other way round (Inversion)

Solution Approach 2:

The patent extracts the pivotable movement concept and replaces it with a simpler lateral translation mechanism. By taking out the complex swinging motion and substituting it with direct linear movement constrained by guide walls, the innovation is maintained while complexity is reduced.

Inventive Principle:
Principle #2Taking out (Extraction)

3Ease of operation

If retaining flaps are added to restrict the lid's opening movement, then the opening movement is controlled, but the device complexity increases

Engineering Contradiction:
Improveopening movement controlVSAvoidstructure complexity
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The patent employs self-service control mechanisms where the inner case's lateral movement is automatically constrained by the guide walls formed by the outer case. The stopper elements provide automatic positioning without requiring additional active control systems, maintaining operational control while minimizing structural complexity.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The patent uses thin guide walls and stopper elements that provide necessary constraints with minimal material and structure. These thin film-like constraints effectively control the opening movement without adding significant bulk or complexity to the overall design.

Inventive Principle:
Principle #30Flexible shells and thin films

Data Source

PatentEP1923329B1Cigarette box and a blank set therefor
Publication Date: 2013.10.23 JAPAN TOBACCO INC
  • EP1923329B1 patent drawingFigure 1
  • EP1923329B1 patent drawingFigure 2
  • EP1923329B1 patent drawingFigure 3

AI summary

A cigarette box has an outer case (2) provided in a portion of a bottom wall (14) thereof with a movable base (22) capable of turning around a hinge (20), and an inner case (4) disposed in the outer case (2), the inner case (4) holding an inner pack of cigarettes. The inner case (4) is connected to the movable base (22) only at a bottom wall (26) thereof, and protrudes from an open face (6) of the outer case (2) in a lateral direction of the outer case (2) when turned around the hinge (22) together with the movable base (22), which opens the cigarette box.