Helmet Comfort Adjustment via 3D Head Shape Visualization
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Solution Overview
Problem
Conventional head size measuring tools fail to accurately capture the complex shape of a wearer's head, leading to difficulties in adjusting helmets for a comfortable fit, as they only measure predetermined points and not the entire head shape.
Innovation Solution
A method involving the acquisition of three-dimensional head shape data and inner helmet surface data to display space information, allowing for the precise specification and attachment of additional pads to fill gaps, ensuring a comfortable fit by visualizing and addressing the entire head surface's space requirements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If conventional head size measuring tools are used to measure predetermined points of the head, then the measurement process is simple, but the measurement precision is insufficient to capture the complicated shape of the whole head
Solution Approach 1:
The patent creates a three-dimensional computerized model (copy) of the wearer's head shape by measuring multiple points and generating spatial coordinates. This digital replica allows comprehensive analysis of the entire head shape without requiring complex physical measurement devices, resolving the contradiction between measurement precision and device complexity
Solution Approach 2:
The patent transitions from measuring only predetermined points (zero-dimensional) to capturing the complete three-dimensional shape of the head. By generating spatial coordinates (x, y, z) for multiple measurement points and creating a 3D model, the system achieves comprehensive head shape measurement while using relatively simple measurement devices
2Adaptability or versatility
If a helmet is manufactured with a uniform inner surface shape, then the manufacturing process is simple, but the adaptability to individual wearer head shapes is poor
Solution Approach 1:
The patent divides the helmet padding into multiple detachable additional pads that can be independently adjusted. Each pad can be positioned at specific locations on the helmet inner surface to fill gaps between the uniform helmet shape and the wearer's irregular head shape, providing customization without requiring a completely custom-molded helmet
Solution Approach 2:
The patent makes the helmet padding dynamic and adjustable rather than fixed. The additional pads can be attached, detached, and repositioned to adapt to different wearer head shapes, allowing the same helmet to be customized for multiple wearers with different head geometries
3Ease of operation
If additional pads are added to fill gaps between the helmet inner surface and the wearer's head, then the comfort level is improved, but the device complexity increases
Solution Approach 1:
The patent applies additional pads only at specific locations where gaps are detected between the helmet inner surface and the wearer's head, rather than uniformly across the entire helmet. This targeted approach provides comfort improvement while minimizing the increase in device complexity by adding padding only where necessary
Data Source
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AI summary
A method for adjusting the comfort level of a helmet includes the steps of acquiring head shape data (S102) by measuring a three-dimensional shape of a head of a wearer of a helmet 1, inputting inner surface shape data (S104) showing a three-dimensional shape of a helmet inner surface 1a, acquiring space information (S108) showing a space between the head and the helmet inner surface 1a on the basis of the head shape data and the inner surface shape data, and displaying (S110) additional images showing the space information on a display part 13 by superimposing the additional images on i) a shape image showing the inner surface shape data or ii) the shape image showing the head shape data and the inner surface shape data.