Helmet Suspension Strap Replacement With Adapter Rings
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Solution Overview
Problem
The standard rear and top strap adjustment mechanisms in helmet suspensions, such as those used in welding helmets, are prone to failure and discomfort during extended use, necessitating an improved headgear assembly.
Innovation Solution
A replacement strap assembly featuring adapter rings and straps made from stretchable or reinforced materials, secured with stitching or fasteners, which can be installed over existing attachment bosses to provide a durable and comfortable alternative.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If standard rear and top strap adjustment mechanisms are used in helmet suspensions, then the helmet can be secured to the user's head, but the mechanisms are prone to failure and cause discomfort during extended use
Solution Approach 1:
The patent removes the problematic adjustment mechanisms (ratcheting system, adjustment holes and posts) from the strap assembly entirely. The rear strap and top strap are extracted as separate replaceable components that can be independently replaced when worn or damaged, eliminating the failure-prone adjustment mechanisms while maintaining the essential function of securing the helmet.
Solution Approach 2:
The patent changes the material parameters of the straps by specifying stretchable fabric or reinforced materials with specific properties (elastic modulus, tensile strength). This allows the straps to maintain comfort and fit without rigid adjustment mechanisms, resolving the contradiction between reliability and comfort through material property optimization.
2Stability of the object's composition
If standard rear and top straps are used in helmet suspensions, then the helmet structure can be maintained, but the straps are prone to mechanical failure during extended use
Solution Approach 1:
The patent specifies that the rear strap and top strap be made from stretchable fabric or reinforced materials, combining different material properties to achieve both structural stability and durability. The composite construction allows the straps to withstand extended use while maintaining the overall helmet structure through appropriate material selection and construction methods.
3Ease of manufacture
If conventional strap materials and construction methods are used, then manufacturing is straightforward, but the straps become uncomfortable and fail during extended use
Solution Approach 1:
The patent divides the strap system into separable components (rear strap, top strap, adapter rings) that can be manufactured independently using straightforward methods. Each component is simple to manufacture individually, but their segmented design allows replacement of only worn parts rather than the entire assembly, improving longevity while maintaining manufacturing simplicity.
Data Source
AI summary
A system and method for replacing the rear and/or top strap of a helmet suspension assembly is disclosed. The system includes a pair of adapter rings, each configured to fit over an attachment boss of a helmet's headgear assembly. Replacement straps, which may be made of stretchable or reinforced materials, are attached to the adapter rings and extend between them to provide secure and adjustable support. The adapter rings and straps can be installed on existing helmet assemblies by removing the original straps and fitting the adapter rings over the attachment bosses. The invention accommodates various boss shapes and provides improved comfort, durability, and ease of replacement for helmet users.