Protective Helmet Support Frame With Adjustable Impact Absorption
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Solution Overview
Problem
Existing safety helmets often compromise between safety and comfort due to bulky shock-absorbing elements and inadequate attachment methods for accessories, leading to reduced wearing comfort and ineffective impact absorption.
Innovation Solution
A protective helmet design featuring a support frame with an annular fastening crown and free-standing leg elements that securely attach helmet components and accessories without drilling into the helmet shell, using a hook and loop fastener, and incorporating shock absorption pads for improved adjustability and impact absorption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If shock-absorbing elements are added to protect the head from impacts, then safety is improved, but the elements become bulky and reduce wearing comfort
Solution Approach 1:
The shock absorption system is segmented into multiple independent leg elements (front leg element, rear leg elements) that can be individually adjusted. Each leg element contains shock-absorbing material but is structured to provide localized protection rather than bulk coverage, allowing safety functionality to be distributed throughout the helmet interior without creating a bulky mass.
Solution Approach 2:
The leg elements are designed to be height-adjustable and movable, allowing the shock absorption pads to dynamically adapt to the wearer's head shape and position. This dynamic adjustment capability enables the shock-absorbing elements to maintain protection effectiveness while minimizing bulk when not in contact with the head, thereby improving wearing comfort.
2Adaptability or versatility
If helmet accessories and components are fastened inside the helmet shell, then attachment options are provided, but drilling into the shell weakens its protective structure
Solution Approach 1:
The leg elements serve as intermediary structures that provide attachment functionality without requiring direct connection to the helmet shell. Accessories and shock absorption pads are attached to the leg elements, which are themselves secured to the shell through the fastening crown. This intermediary approach allows fastening of components while preserving the integrity of the helmet shell's protective structure.
Solution Approach 2:
The leg elements are designed as multi-functional components that simultaneously provide shock absorption, accessory attachment, and structural support. By consolidating these functions into the leg elements rather than requiring separate attachment mechanisms in the shell, the design provides versatile attachment options while maintaining shell strength.
3Ease of manufacture
If hook and loop fasteners are used to attach shock absorption pads, then attachment is simple, but the connection is not secure and firm compared to drilling
Solution Approach 1:
The leg elements are designed with curved surfaces that conform to the head shape and provide a mechanically superior attachment geometry. The curvature allows for better distribution of attachment forces and creates a more secure mechanical interlock compared to flat surfaces, enhancing the reliability of hook and loop fastener connections while maintaining ease of manufacture.
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
Enhances safety and comfort by providing secure attachment for accessories, adjustable shock absorption, and improved impact energy dissipation through the support frame's design, reducing direct transmission of forces to the wearer's head.
Implementation Method 1
The at least one leg element is designed to absorb impact energy and reduce the transmission of forces to the wearer's head
Implementation Method 2
The holder is designed to secure the shock absorption element to the leg element
Data Source
Figure 1~2
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Figure 5~6
AI summary
The invention relates to a protective helmet 2 comprising a helmet shell 4 and a support frame 10. The support frame 10 comprises a fastening crown 12. The fastening crown 12 is fixed to an inner side 5 of the helmet shell 4 or is formed as a component of the inner side 5 of the helmet shell 4. The support frame 10 further comprises at least one stiffened leg element 20. The leg element 20 extends freely from the fastening crown 12 toward a lower edge 6 of the helmet shell of the protective helmet 2.