Wand-Interlocked Ignition Device for Safe Flame Assembly Actuation
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Solution Overview
Problem
Existing ignition devices for flame producing assemblies with wands can be hazardous when used with assemblies lacking wands, and may be difficult for some users to actuate, posing safety and usability issues.
Innovation Solution
An ignition device with a receiving portion that adapts between positions, featuring a movable pin that blocks or allows actuation of the trigger mechanism based on the presence of a wand, ensuring safe and efficient ignition only when a wand is present.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the ignition device is designed to work with flame producing assemblies without wands, then it can be used more universally, but it becomes hazardous when the flame burns or heats the ignition device
Solution Approach 1:
The receiving portion is pre-configured with a wand-receiving cavity and positioning structures that guide the wand into place before ignition occurs. This preliminary arrangement ensures the flame is directed away from the ignition device body, preventing burning or heating of the device while maintaining universal compatibility with different flame producing assemblies
2Reliability
If the threshold force for actuation is increased to prevent accidental ignition, then safety is improved, but it becomes difficult for some users to actuate
Solution Approach 1:
A lever mechanism serves as an intermediary between the user's finger and the ignition trigger. The lever provides mechanical advantage, allowing users to actuate the ignition with minimal force while still ensuring intentional activation. The lever's pivot point and length are designed to amplify the user's input force, resolving the contradiction between safety and ease of operation
3Device complexity
If the receiving portion is fixed in position, then the structure is simpler, but it cannot adapt to different ignition positions and angles
Solution Approach 1:
The receiving portion is designed with rotational and translational freedom, allowing it to dynamically adjust to different ignition positions and angles. The receiving portion can rotate around the flame producing assembly and adjust its orientation to accommodate various burning directions (upward, sideways, downward). This dynamic capability enables universal compatibility with different flame producing assemblies while maintaining relatively simple structural design
Data Source
Figure 1A
Figure 1B
Figure 1C
AI summary
In a first aspect, the present disclosure relates to an ignition device configured to ignite a flame producing assembly. The ignition device comprises a receiving portion configured to receive a flame producing assembly, wherein the receiving portion is configured to adapt between a receiving position and an ignition position. Further, the ignition device comprises a trigger mechanism configured to ignite the flame producing assembly (100) when actuated. The ignition device further comprises a movable pin, wherein the movable pin is configured to move from a first position to a second position when a flame producing assembly comprising a wand is inserted into the receiving portion and the receiving portion is moved to the ignition position. The movable pin is further configured to block actuation of the trigger mechanism when in the first position, and configured to allow actuation of the trigger mechanism when in the second position.