Smoking Article Segment Connection via Staggered Wrapping Sheets

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Solution Overview

Problem

Existing multi-component smoking articles for aerosol formation are complex and expensive to produce, requiring multiple storage spaces, supplies, and assembly devices, and often lack a stable connection between components due to excessive material usage and structural instability.

Innovation Solution

A smoking article comprising a group of segments with a wrapping sheet arrangement that reduces material and component usage, featuring an empty space between segments and multiple wrapping layers for mechanical stability, allowing for a simpler and cost-effective production process.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If multiple components (segments) are used for aerosol formation, then the functionality and aerosol formation capability are improved, but the device complexity and production cost increase due to requiring multiple storage spaces, supplies, and assembly devices

Engineering Contradiction:
Improveaerosol formation capabilityVSAvoidproduction complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent merges multiple components (tobacco rod, filter, tipping material) into a single integrated smoking article structure. The wrapping sheet combines multiple functions: it wraps the tobacco rod, connects the filter, and provides structural support, thereby reducing the number of separate assembly operations and devices needed while maintaining multi-component functionality

Inventive Principle:
Principle #5Merging (Combining)

2Adaptability or versatility

If multiple components are used for aerosol formation, then the functionality is improved, but the manufacturing cost increases due to requiring multiple storage spaces and assembly devices

Engineering Contradiction:
Improveaerosol formation capabilityVSAvoidproduction cost
Core Design Contradiction:
Adaptability or versatilityVSEase of manufacture

Solution Approach 1:

The wrapping sheet serves multiple manufacturing functions simultaneously: it acts as a connector between components, provides structural support, and eliminates the need for separate assembly fixtures. This multi-functionality reduces the number of manufacturing steps and equipment required, thereby lowering production costs

Inventive Principle:
Principle #5Merging (Combining)

3Reliability

If excessive material is used to connect components, then the connection stability is improved, but the material usage and production cost increase

Engineering Contradiction:
Improveconnection stabilityVSAvoidmaterial usage
Core Design Contradiction:
ReliabilityVSQuantity of substance

Solution Approach 1:

The wrapping sheet applies material selectively at critical connection points rather than uniformly throughout the article. The sheet is positioned to provide maximum structural support at the interface between the tobacco rod and filter, while minimizing material usage in non-critical areas, achieving stable connection with reduced overall material consumption

Inventive Principle:
Principle #3Local quality

4Adaptability or versatility

If traditional multi-component structure is used, then the aerosol formation functionality is achieved, but the structural stability is insufficient due to difficulty in guaranteeing adequate connection between different components

Engineering Contradiction:
Improveaerosol formation functionalityVSAvoidstructural stability
Core Design Contradiction:
Adaptability or versatilityVSStrength

Solution Approach 1:

The wrapping sheet acts as an intermediary element that mechanically couples the tobacco rod and filter components. This intermediate structure provides a stable connection interface, distributing mechanical stresses and preventing component separation, thereby enhancing overall structural stability while maintaining the multi-component aerosol generation capability

Inventive Principle:
Principle #24Intermediary (Mediator)

Data Source

PatentEP3644767B1Article of the industry of products adapted to emit a substance to be inhaled
Publication Date: 2024.05.15 GD SPA
  • EP3644767B1 patent drawingFigure 1~4
  • EP3644767B1 patent drawingFigure 5~6
  • EP3644767B1 patent drawingFigure 7~8

AI summary

Article (1) of the industry of products adapted to emit a substance to be inhaled, in particular a smoking article; the article (1) comprises a group (2) of segments comprising, in turn, a first segment (3) and at least a second segment (5), which are arranged in succession along a longitudinal extension of the group (2) of segments so that the first and the second segments (3, 5) are spaced apart from one another and an empty space (6) is arranged between them; the article (1) comprises a first and a second wrapping sheet (7, 10) which are partially overlapped and staggered one with respect to the other; at least one among the first and the second sheets (7, 10) delimits the empty space (6) radially relative to the longitudinal axis (A) of the group (2) of segments.