Leaf Spring Badge Mounting Device for Firefighter Helmets
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Solution Overview
Problem
Existing protective helmets with leather badges and mounting devices are prone to foreign objects entering the recess and bending the badge backward, causing distractions for the wearer as they try to dislodge the object.
Innovation Solution
The mounting device features a leaf spring blade that extends upwardly along the back face of the badge as far as the upper edge, preventing foreign objects from entering and bending the badge backward by maintaining the recess closed.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If the blade portion extending upwardly along the back face of the badge does not extend as far as the upper portion of the badge, then the mounting device structure is simpler, but foreign objects can enter the recess and bend the badge backwardly
Solution Approach 1:
The blade is designed to extend as far as the upper portion of the badge, creating a preliminary barrier that prevents foreign objects from entering the recess and bending the badge. This extended blade position establishes an anti-action against the harmful effect of foreign object intrusion before it can occur.
2Object-affected harmful factors
If the blade extends as far as the upper edge of the badge, then foreign objects are prevented from entering the recess, but the blade length increases
Solution Approach 1:
The mounting device is segmented into functional zones: the fitment with recess, the extended blade portion that reaches the upper badge edge for protection, and the biased portion that applies forward force. This segmentation allows the blade to extend only as necessary for foreign object prevention without unnecessary length increase.
3Reliability
If the upwardly extending portion of the blade biases the badge frontwardly, then the badge remains secure, but the blade must maintain continuous contact with the badge
Solution Approach 1:
The blade is designed as a flexible element that dynamically adapts its contact with the badge. The biased portion continuously applies forward force while the extended portion maintains positional stability, allowing the system to respond to variations in badge installation and foreign object attempts without rigid constraints.
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
This design effectively prevents foreign objects from entering the recess, reducing distractions for the wearer and ensuring the badge remains secure.
Implementation Method 1
If the blade is a leaf spring, the upwardly extending portion of the blade biases the badge frontwardly
Data Source
AI summary
A protective helmet of a type worn by a firefighter or by an emergency worker, wherein the protective helmet is equipped with a mounting device, by which a badge having a front face bearing indicia is mounted to the protective helmet. The mounting device comprises a fitment, which is mounted to the protective helmet and which has a recess opening downwardly and receiving an upper portion of the badge, the upper portion comprising an upper end of the badge. The mounting device comprises a blade, which is mounted to the protective helmet and which has a portion extending upwardly along a back face of the badge as far as the upper edge of the badge, or farther. The badge may be predominantly made of leather. The blade is a leaf spring, which biases the badge frontwardly.