Lighter With Detachable Flint Mounting Frame

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Solution Overview

Problem

Conventional lighters do not allow easy replacement of the flint member, leading to wear and tear, resulting in resource and financial waste as users often opt for new lighters instead of replacing the flint.

Innovation Solution

A lighter design featuring a detachable flint mounting frame from the fuel casing and supporting frame, enabling easy replacement of the flint member by allowing the flint mounting frame to be detached and reattached, facilitating the swapping of the flint member.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of repair

If the flint member is integrated into the supporting frame, then the structure is simple and reliable, but the flint member cannot be easily replaced when worn

Engineering Contradiction:
Improveflint member replacementVSAvoidstructure complexity
Core Design Contradiction:
Ease of repairVSDevice complexity

Solution Approach 1:

The flint mounting frame is divided into two detachable parts: an upper operative frame that remains with the supporting frame, and a lower mounting frame that can be easily removed. This segmentation allows the flint member to be replaced by simply detaching the lower mounting frame, solving the contradiction between structural simplicity and ease of repair.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The flint member and its mounting frame are extracted as a separate replaceable component from the main supporting frame. The lower mounting frame can be completely removed from the upper operative frame, allowing users to replace the flint member without affecting the rest of the lighter structure, thus achieving easy repair while maintaining overall structural integrity.

Inventive Principle:
Principle #2Taking out (Extraction)

2Reliability

If the flint member is permanently fixed, then the reliability is high, but resource waste increases when the flint member needs replacement

Engineering Contradiction:
Improveignition reliabilityVSAvoidresource waste
Core Design Contradiction:
ReliabilityVSLoss of substance

Solution Approach 1:

The design enables selective replacement of only the worn flint member and lower mounting frame, while the upper operative frame and supporting frame are retained and reused. This approach prevents complete disposal of the lighter when the flint member wears out, thereby reducing resource waste while maintaining ignition reliability through proper flint replacement.

Inventive Principle:
Principle #34Discarding and recovering

3Ease of operation

If the flint mounting frame is detachable, then the ease of replacement is improved, but the device complexity increases

Engineering Contradiction:
Improveflint member replacement convenienceVSAvoidmounting frame structure
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The flint mounting frame is segmented into an upper operative frame and a lower mounting frame connected by a detachable connection structure. This segmentation provides easy replacement capability through simple detachment and reattachment operations, while the modular design keeps the overall structure relatively simple and manageable.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The connection between the upper and lower mounting frames is designed to be dynamically changeable - firmly connected during normal operation to ensure reliability, but easily detachable when replacement is needed. This dynamic connection characteristic allows the structure to provide both stability during use and ease of repair when required.

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 convenient and cost-effective replacement of the flint member, extending the lighter's lifespan without the need for a new device, thus reducing waste and resource consumption.

Implementation Method 1

the spark wheel is arranged to hit the flint member and generate a spark so as to ignite the gaseous fuel

Methodology Applied
Scientific EffectFriction: Friction

Data Source

PatentUS12152775B2Lighter with replaceable flint member
Publication Date: 2024.11.26 ARROW LIGHTER INC
  • US12152775B2 patent drawing
  • US12152775B2 patent drawing
  • US12152775B2 patent drawing

AI summary

A lighter includes a fuel casing, a gas-releasing nozzle, a supporting frame provided on the fuel casing, a fuel mounting frame, a spark wheel, a flint member and an actuator. The flint mounting frame has an upper operative frame detachably mounted on the supporting frame, and a lower mounting frame extended into the fuel casing. The spark wheel is rotatably supported on the upper operative frame of the flint mounting frame. The flint member is detachably mounted in the lower mounting frame of the flint mounting frame and extended toward the upper operative frame to communicate with the spark wheel. When the flint mounting frame is detached from the supporting frame and the fuel casing, the flint member is capable of being detached from the lower mounting frame for replacement of a new flint member.