Rotating Adjustment Button for Sports Helmet Fit
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Solution Overview
Problem
Conventional sports helmets have fixed sizes and require tight adjusting belts, leading to discomfort and aesthetic issues during prolonged use.
Innovation Solution
A sports helmet with a rotatable adjusting button that allows the head encircling means to be adjusted to fit various head sizes, using a belt mechanism with engaging teeth and hooks to contract or release for secure fitting.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a fixed size helmet is used, then manufacturing is simple, but it cannot adapt to different head sizes
Solution Approach 1:
The helmet incorporates a dynamic adjustment mechanism where the head encircling means can be contracted or released by rotating the adjusting button, transforming a static fixed-size structure into a dynamic adjustable one that adapts to different head sizes while maintaining structural simplicity
Solution Approach 2:
The invention changes the size parameter of the head encircling means through mechanical adjustment. The belt mechanism with engaging teeth and hooks allows the circumference of the helmet to be modified by rotating the adjusting button, enabling the same helmet to fit multiple head sizes
2Ease of operation
If a tying belt is used for adjustment, then size adjustment is achieved, but user comfort deteriorates during prolonged use
Solution Approach 1:
The adjusting button mechanism allows users to easily contract or release the head encircling means through simple rotation without requiring complex tying or fastening operations. The self-contained mechanical advantage system enables one-handed adjustment, improving ease of operation while reducing user discomfort
Solution Approach 2:
The invention transforms the adjustment parameter from a tight fixed belt configuration to a dynamically adjustable encircling means that can be precisely fitted to the user's head circumference, distributing pressure more evenly and reducing discomfort during prolonged wear
3Adaptability or versatility
If a tying belt is used for adjustment, then size adjustment is achieved, but aesthetic appearance deteriorates
Solution Approach 1:
The invention extracts the visible tying belt from the final product design, replacing it with a compact adjusting button mechanism. The functional belt mechanism is hidden within the helmet structure, with only the small rotating button visible on the exterior, thereby maintaining aesthetic appearance while preserving size adjustment capability
Solution Approach 2:
The belt mechanism with engaging teeth and hooks is nested within the helmet structure, concealed from external view. The adjusting button sits on the surface while the functional components are hidden inside, creating a clean aesthetic appearance while maintaining full adjustment functionality
Data Source
AI summary
A safe protective sports helmet is provided which includes a hat body, the hat body is provided therein with a circle of a head encircling element, and is provided rotatably thereon with a rotatable adjusting button. The head encircling elements and the rotatable adjusting button are movably connected with each other. By rotating the rotatable adjusting button, the head encircling elements can be adjusted to fit the head size of a user.