Heat Source Holder for Flavor Inhaler Package

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Solution Overview

Problem

Existing flavor inhaler designs with separate heat sources and tubular members lack a convenient configuration for inserting small heat sources, such as carbon heat sources, which are less than 1 cm³, into the tubular member, making it difficult for users to properly insert them.

Innovation Solution

A package design featuring a partition member that separates the space into a heat source housing area and a tubular member area, with a heat source holder that positions the heat source so its insertion end protrudes from the top, allowing easy alignment and insertion into the tubular member, and a tubular member with a supporting end that has a decreasing internal dimension towards the mouthpiece side to facilitate correct insertion.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Volume of moving object

If the heat source is provided separately from the tubular member, then the heat source can be small (less than 1 cm³), but it becomes difficult to insert into the tubular member

Engineering Contradiction:
Improveheat source volumeVSAvoidease of insertion
Core Design Contradiction:
Volume of moving objectVSEase of operation

Solution Approach 1:

The heat source is pre-held in a predetermined posture by the holder before insertion. The holder positions the heat source with its longitudinal axis substantially perpendicular to the bottom surface of the package, ensuring correct orientation before the user inserts it into the tubular member. This preliminary positioning action resolves the contradiction by making small heat sources easy to insert while maintaining their compact size.

Inventive Principle:
Principle #10Preliminary action

2Volume of moving object

If the heat source is small, then it can be compact, but incorrect orientation during insertion cannot be detected

Engineering Contradiction:
Improveheat source volumeVSAvoidinsertion orientation accuracy
Core Design Contradiction:
Volume of moving objectVSMeasurement precision

Solution Approach 1:

The holder pre-positions the heat source in the correct orientation before insertion, eliminating the need for the user to judge orientation manually. The holder's structure ensures the heat source's longitudinal axis is perpendicular to the bottom surface, providing built-in orientation guidance that prevents incorrect insertion.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The package bottom surface is designed with asymmetric features including a recessed portion and a protruding portion that correspond to asymmetric features on the heat source. This asymmetric design creates a unique fit that only allows correct orientation, making it impossible to insert the heat source incorrectly while maintaining its compact size.

Inventive Principle:
Principle #4Asymmetry

3Stability of the object's composition

If the heat source holder holds the heat source securely, then the heat source position is stable, but the insertion end portion cannot protrude for easy insertion

Engineering Contradiction:
Improveheat source position stabilityVSAvoidease of insertion
Core Design Contradiction:
Stability of the object's compositionVSEase of operation

Solution Approach 1:

The holder is designed with differentiated local qualities: it provides strong holding force at the non-insertion end portion to maintain stable positioning, while allowing the insertion end portion to protrude freely. This localized differentiation of holding strength enables both stable storage and easy insertion of the compact heat source.

Inventive Principle:
Principle #3Local quality

Data Source

PatentEP2954792B2package
Publication Date: 2022.06.29 JAPAN TOBACCO INC
  • EP2954792B2 patent drawingFigure 1
  • EP2954792B2 patent drawingFigure 2
  • EP2954792B2 patent drawingFigure 3~4

AI summary

A package (100) houses a heat source (50) having a columnar shape extending along a predetermined direction and houses a tubular member (30) having a tubular shape. The package (100) comprises a bottom surface (11) (bottom surface (11A)) and a heat source holder (13A) holding the heat source (50) so that the predetermined direction is directed toward a direction crossing the bottom surface (11).