Helmet Fitting Band With Elastic Auto-Adjustment Mechanism
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Solution Overview
Problem
Existing helmet designs require manual adjustment of the band to tighten or loosen when putting on or taking off, which is inconvenient.
Innovation Solution
A system with an adjustable elastic force unit and an adjustable elastic force unit that includes a band, a fitting unit connected to the band, and an adjustment mechanism to adjust the elastic force, using gear-coupled pinion and rack gears to change the position of the fitting unit relative to the band, providing elastic force to the back of the wearer's head.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a dial mechanism is used to control band length, then the band can be tightened or loosened, but manual adjustment is required whenever the helmet is put on or taken off
Solution Approach 1:
The patent applies the self-service principle by implementing an elastic band that automatically adjusts to fit the wearer's head without manual intervention. The elastic means (spring or rubber band) provides automatic tension adjustment, eliminating the need for the wearer to manually turn a dial when putting on or removing the helmet. The system serves itself by using the elastic deformation of the band to maintain proper fit throughout the wearing period.
2Adaptability or versatility
If the band is made adjustable with a dial, then the fitting can be customized, but separate manipulation is needed for each adjustment
Solution Approach 1:
The patent applies parameter changes by using an elastic means (spring or rubber band) whose elastic coefficient can be adjusted to change the fitting parameters. The adjustment mechanism modifies the elastic force parameter of the band, allowing different levels of tightness and fit customization without requiring complex mechanical adjustments. This enables adaptability through material property modification rather than structural complexity.
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
Eliminates the need for manual adjustment by automatically adjusting the elastic force to fit the helmet comfortably without separate manipulation, allowing for various elastic forces to be applied as desired by the wearer.
Implementation Method 1
a fitting unit (200) connected to the band (100) and configured to provide an elastic force to the back of a wearer's head
Implementation Method 2
the adjustment means (300) is gear-coupled to the fitting means (210)
Data Source
AI summary
The present disclosure relates to a helmet fitting system and a manufacturing method therefor. The helmet fitting system according to the present disclosure includes a band (100) having one end fixed to a certain point (X) of a helmet (10), a fitting unit (200) connected to the band (100) and configured to provide an elastic force to the back of a wearer's head, and an adjustment means (300) configured to adjust the elastic force of the fitting unit (200).