Foldable Inner Frame Blank with Aperture for Cigarette Pack Extraction

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Solution Overview

Problem

Conventional cigarette packs lack an efficient mechanism for extracting tobacco products while maintaining structural integrity and freshness, as existing frames do not effectively address the need for easy access and preservation of the products.

Innovation Solution

A foldable inner frame blank with a central aperture and strengthening tabs, combined with a resealable wrapper and pressure differential, allows for easy extraction of tobacco products while maintaining structural rigidity and preserving freshness.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If a conventional frame structure is used in cigarette packs, then the structural integrity of the pack is maintained, but the ease of extracting tobacco products is poor

Engineering Contradiction:
Improveease of extracting tobacco productsVSAvoidstructural integrity of the pack
Core Design Contradiction:
Ease of operationVSStrength

Solution Approach 1:

The frame is segmented by introducing an aperture that divides the central panel into distinct sections, creating a defined extraction opening. This segmentation allows tobacco products to be removed through the aperture while the remaining frame structure maintains its integrity through the distributed panel design.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The aperture is extracted from the central panel to create a dedicated extraction opening. This extracted region provides direct access to tobacco products without requiring destruction of the entire frame structure, thereby improving ease of operation while preserving overall structural integrity.

Inventive Principle:
Principle #2Taking out (Extraction)

2Ease of operation

If an aperture is introduced for product extraction, then the ease of access to tobacco products is improved, but the structural rigidity of the frame may be compromised

Engineering Contradiction:
Improveaccess to tobacco productsVSAvoidstructural rigidity of the frame
Core Design Contradiction:
Ease of operationVSStability of the object's composition

Solution Approach 1:

The frame structure exhibits local quality variations where the central panel contains an aperture for access, while the first and second major panels remain intact to provide structural rigidity. This localized modification allows access functionality without compromising the overall structural composition.

Inventive Principle:
Principle #3Local quality

Solution Approach 2:

The aperture is positioned asymmetrically within the central panel, creating an extraction opening that optimizes access to tobacco products while maintaining asymmetric structural support. The unequal distribution of material around the aperture contributes to both access functionality and structural stability.

Inventive Principle:
Principle #4Asymmetry

3Ease of manufacture

If a simple frame structure is used, then the manufacturing complexity is reduced, but the ability to maintain freshness through sealing is insufficient

Engineering Contradiction:
Improvemanufacturing complexityVSAvoidfreshness preservation capability
Core Design Contradiction:
Ease of manufactureVSReliability

Solution Approach 1:

The frame structure is merged with the wrapper to form an integrated sealing system. The wrapper is sealed to the outer surfaces of the frame, creating a combined structure that maintains freshness while the frame's aperture design allows access. This merging achieves reliability enhancement without significantly increasing manufacturing complexity.

Inventive Principle:
Principle #5Merging (Combining)

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

The solution enables easy access to tobacco products while maintaining the structural integrity of the pack and preserving freshness through the use of a foldable inner frame and resealable wrapper, along with a pressure differential that enhances product preservation.

Implementation Method 1

an inner frame blank for a pack of tobacco industry products, the inner frame blank being foldable to form an inner frame for holding a group of tobacco industry products

Methodology Applied
Scientific EffectFolding: Folding

Implementation Method 2

the inner frame blank further comprises an aperture in at least the central panel that defines an extraction opening for removing tobacco industry products from within said inner frame

Methodology Applied
Scientific EffectGeometric aperture formation: Geometry

Implementation Method 3

A strengthening tab may extend from the side panel such that, when the inner frame blank is folded to form said inner frame, the strengthening tab at least partially overlaps the central panel

Methodology Applied
Scientific EffectStructural reinforcement through overlapping:

Implementation Method 4

The wrapper may be sealably wrapped about the inner frame and tobacco industry products

Methodology Applied
Scientific EffectSealing:

Implementation Method 5

The wrapped bundle may further comprise an adhesive label adhered to the wrapper to cover the extraction opening of the inner frame

Methodology Applied
Scientific EffectAdhesion: Adhesive

Implementation Method 6

The interior of the wrapped bundle may comprise a pressure differential relative to the exterior of the wrapped bundle. In one example, the pressure differential may comprise at least a partial vacuum within the wrapped bundle

Methodology Applied
Scientific EffectPressure differential: Pressure Gradient

Data Source

PatentUS11447319B2Inner frame blank for a pack of tobacco industry products
Publication Date: 2022.09.20 BRITISH AMERICAN TOBACCO (INVESTMENTS) LTD
  • US11447319B2 patent drawing
  • US11447319B2 patent drawing
  • US11447319B2 patent drawing

AI summary

An inner frame blank for a pack of tobacco industry products, where the inner frame blank is foldable to form an inner frame for holding a group of tobacco industry products, and the inner frame blank has a first major panel and a second major panel joined to opposing edges of a central panel such that the first and second major panels are foldable relative to the central panel to form opposing sides of the inner frame, and where the inner frame blank also has an aperture in at least the central panel that defines an extraction opening for removing tobacco industry products from within the inner frame when the inner frame blank is folded to form the inner frame.