産業用ヘルメットは,シミュレートされた落下やトリップで頭を保護できますか?
Rachel Jia Ying Tan1, Xiancheng Yu2,3, Mazdak Ghajari2
1HEAD Lab, Dyson School of Design Engineering, Imperial College London, London, SW7 2AZ, UK. jtan2@imperial.ac.uk.
Annals of biomedical engineering
|February 13, 2026
まとめ
発泡スチロールベースの産業用ヘルメットは,サスペンションベースの設計と比較して,トリップと転落の衝撃に対して優れた保護を提供します. ヘルメットのデザインは安全性に大きく影響し,脳外傷を予防するための基準の改善の必要性を強調しています.
科学分野:
- 労働安全と健康に関する法律
- バイオメカニクスと怪我の予防
- 防護器具の工学について
背景:
- 転倒とトリップは,職場でのトラウマ性脳損傷 (TBI) の主要な原因です.
- 産業用ヘルメットの落下やトリップ時の保護効果は十分に確立されていません.
- これらの特定の衝撃シナリオにおけるヘルメットの性能を理解することは,怪我の軽減に不可欠です.
研究 の 目的:
- シミュレートされた転落とトリップインパクト条件下での様々な産業用ヘルメット設計の有効性を評価する.
- サスペンションベースのヘルメット設計と,泡状ヘルメット設計の保護性能を比較するために.
- 衝撃の場所,速度,表面の種類がヘルメット保護に与える影響を評価する.
主な方法:
- 6つの産業用ヘルメットをテストした:EN 397に準拠する4つのサスペンションベース (MIPS付き1台) とEN 397/EN 12492に準拠する2つの泡ベースのモデル.
- ヘルメットを角度のあるアンビルに落とすことで,さまざまなスピードと衝撃点でシミュレートされたトリップと落下をシミュレートします.
- EN 17950のヘッドフォームによる衝撃面としてP80の研磨用紙と屋根シングルを使用しました.
主要な成果:
- 発泡スチロールベースのヘルメットは,サスペンションベースのヘルメットと比較して優れた衝撃保護を示しました.
- サスペンションベースのヘルメットは衝撃の位置に対してより高い感度を示し,55m/sでリム近くのフロントインパクトで重度の加速 (>700g) を引き起こしました.
- 回転減速システム (MIPS) はピークの回転加速度を減らし,P80の磨き面はピークの運動性を高めました.
結論:
- 産業用ヘルメットのデザインは,トリップや落下からの影響に対する保護に重大な影響を及ぼします; 発泡スチロールベースのデザインは,強化された利点を提供します.
- 現在のヘルメットの安全基準は,落下やトリップのシナリオをうまく対処するために,改訂が必要になる可能性があります.
- ヘルメットの設計の改善は,仕事に関連した脳損傷の発生率を減らすために不可欠です.
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