2022 Fiscal Year Final Research Report
Development of neck protector for comfort
| Project/Area Number |
20K04157
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Multi-year Fund |
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| Section | 一般 |
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| Review Section |
Basic Section 18010:Mechanics of materials and materials-related
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| Research Institution | Kanazawa University |
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Principal Investigator |
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| Project Period (FY) |
2020-04-01 – 2023-03-31
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| Keywords | 衝撃工学 / 生体工学 / プロテクター / 高分子材料 / 発泡材料 |
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| Outline of Final Research Achievements |
This study was conducted to develop a neck protector that is easy to wear, does not interfere with head and neck motion, and effectively protects the neck in a falling impact by utilizing the strain rate dependence of epoxy foam. The relationship between strain rate, temperature, and compound ratio on the compressive properties of the epoxy foam was clarified. It was shown that appropriate properties can be selected to construct the neck protector. Furthermore, impact tests simulating a fall collision showed that the epoxy foam as a neck protector provides excellent neck protection.
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| Free Research Field |
材料力学
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| Academic Significance and Societal Importance of the Research Achievements |
跳躍を伴う競技では，跳躍後の着地失敗で頭頚部が激しく動き，頚椎を損傷する場合があるが，頭頚部の動きを阻害するネックプロテクターの着用を拒む競技者が多い．
本研究課題で提案したネックプロテクターは，エポキシフォームのひずみ速度依存性を活用することで，装着が容易で頭頚部の運動を阻害せず，転倒時に効果的に頚部を保護することを可能とする．エポキシフォームは，主剤と硬化剤の配合比を変更することで，圧縮特性のひずみ速度依存性を調整可能であり，装着性に優れたネックプロテクターとしての活用と普及が期待される．
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