Smoking Mouthpiece Slit Design for Capsule Insertion

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Solution Overview

Problem

Consumers are limited in customizing their smoking experience with existing smoking articles, as they can only use additives provided during manufacturing, and existing methods for inserting custom additives are either restrictive or risk damaging fragile capsules.

Innovation Solution

A smoking article with a mouthpiece featuring a first segment of elastically deformable material, including slits that facilitate deformation to create an opening for inserting and retaining custom units, such as frangible capsules, without applying excessive force, allowing for post-manufacturing customization.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a capsule is embedded in a plug of filtration material and inserted into the mouthpiece recess, then the capsule is retained in the mouthpiece, but the fragile capsule may be damaged during insertion due to compression forces

Engineering Contradiction:

Improvecapsule retentionVSAvoidcapsule integrity

Core Design Contradiction:

ReliabilityVSStrength

Solution Approach 1:

The mouthpiece is divided into multiple segments: a first compressible segment that deforms to allow capsule insertion, a second segment that provides the retention recess, and a third segment. This segmentation allows the first segment to absorb insertion forces while the second segment securely holds the capsule, preventing damage during installation.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The first segment is designed to be compressible and deformable, acting as a cushioning element that absorbs and distributes the compression forces applied during capsule insertion. This beforehand cushioning prevents excessive forces from being transmitted to the fragile capsule, protecting its integrity while still enabling secure retention in the second segment.

Inventive Principle:

Principle #11Beforehand cushioning (Prior cushioning)

2Ease of manufacture

If the mouthpiece is made of rigid material, then manufacturing is simpler, but custom units cannot be inserted without applying excessive force that may damage the capsule

Engineering Contradiction:

Improvemouthpiece fabricationVSAvoidinsertion process

Core Design Contradiction:

Ease of manufactureVSEase of operation

Solution Approach 1:

The mouthpiece exhibits local quality variation: the first segment is made of compressible, deformable material to facilitate easy capsule insertion, while the second segment is made of rigid material with a precisely formed recess for secure capsule retention. This local differentiation allows the mouthpiece to be easy to manufacture overall while providing a specific region that is easy to operate for capsule insertion.

Inventive Principle:

Principle #3Local quality

3Adaptability or versatility

If the mouthpiece allows post-manufacturing customization, then consumer choice is enhanced, but the structure becomes more complex requiring multiple segments and deformable materials

Engineering Contradiction:

Improvecustomization capabilityVSAvoidmouthpiece structure

Core Design Contradiction:

Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The first segment of the mouthpiece is designed to be dynamically deformable, allowing it to change shape during capsule insertion and then return to its original form. This dynamic property enables post-manufacturing customization capability while keeping the overall structure relatively simple, as the deformability is an inherent property of the material rather than a complex mechanical mechanism.

Inventive Principle:

Principle #15Dynamics

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

Enables reliable and effective insertion and retention of custom units within the smoking article, reducing the risk of damage and providing consumers with the ability to customize their smoking experience by selecting and adding various additives.

Implementation Method 1

a first segment of elastically deformable material, the first segment having a length in the longitudinal direction of the mouthpiece and a width transverse to its length. The first segment comprises an insert unit access portion comprising at least one slit extending along at least a part of the length of the first segment, and extending across at least a part of the width of the first segment to facilitate deformation of the access portion

Methodology Applied

Scientific EffectElasticity: Elasticity

Data Source

PatentEP3606362B1Smoking article mouthpiece configured to receive an insert unit

Publication Date: 2022.05.04 PHILIP MORRIS PRODUCTS SA

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AI summary

A smoking article (10) comprising: an aerosol-generating substrate (12) and a mouthpiece (14) secured to a downstream end of the aerosol-generating substrate (12). The mouthpiece (14) comprises a first segment (24) of elastically deformable material, the first segment (24) having a length in the longitudinal direction of the mouthpiece (14) and a width transverse to its length. The first segment (24) comprises an insert unit access portion comprising at least one slit (60) extending along at least a part of the length of the first segment (14), and extending across at least a part of the width of the first segment (14) to facilitate deformation of the access portion, such that an opening (25) is formable or expandable in the access portion of the first segment (14) upon receiving an insert unit (50).