Validation of Effectiveness: 'Fan-Equipped Peltier Cooling Vest' Reduces Workload Under Heat Stress
Daito Kentaku and Showa Shokai have validated the effectiveness of their jointly developed cooling vest in mitigating heat stress, based on research commissioned to Rikkyo University.
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- 📰 Published: May 25, 2026 at 19:30
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Daito Kentaku Co., Ltd. and Showa Shokai Co., Ltd. have confirmed the effectiveness of their jointly developed 'Fan-equipped Peltier cooling vest,' currently provided to construction and supervision staff, following a demonstration experiment commissioned to Rikkyo University.
The experiment was jointly conducted by Professors Takayuki Ishiwata and Nobuhiro Yasumatsu of Rikkyo University, and Professor Hideto Tanaka of Matsuyama University. It confirmed that the combination of 'evaporative cooling via fans' and 'direct cooling via Peltier elements' effectively suppresses skin temperature increase, reduces subjective stress, and maintains cognitive function.
In a 32°C environment, the integrated use of Peltier element cooling suppressed skin temperature increase by approximately 0.5°C in both contact and non-contact areas (such as the upper arm), and improvements were also observed in cognitive function tests. Details of the study are scheduled to be presented at the 80th Annual Meeting of the Japanese Society of Physical Fitness and Sports Medicine.
The experiment was jointly conducted by Professors Takayuki Ishiwata and Nobuhiro Yasumatsu of Rikkyo University, and Professor Hideto Tanaka of Matsuyama University. It confirmed that the combination of 'evaporative cooling via fans' and 'direct cooling via Peltier elements' effectively suppresses skin temperature increase, reduces subjective stress, and maintains cognitive function.
In a 32°C environment, the integrated use of Peltier element cooling suppressed skin temperature increase by approximately 0.5°C in both contact and non-contact areas (such as the upper arm), and improvements were also observed in cognitive function tests. Details of the study are scheduled to be presented at the 80th Annual Meeting of the Japanese Society of Physical Fitness and Sports Medicine.
FAQ
ファン付きペルチェ式冷却ベストとはどのような製品ですか？
ファン付き作業服にペルチェ素子内蔵の冷却プレートを搭載し、モバイルバッテリーで駆動する製品です。外気温度から約20℃低い冷却面を実現し、首元や脇下に装着可能です。
実証実験ではどのような効果が確認されましたか？
32℃の暑熱環境下で、ペルチェ素子による直接冷却を併用することで、接触部位および非接触部位（上腕部）の皮膚温上昇を約0.5℃抑制し、主観的な快適感と認知機能の改善が見られました。
本研究はどこが共同で行いましたか？
大東建託と昭和商会が開発し、立教大学スポーツウエルネス学部の石渡貴之教授・安松幹展教授、および松山大学人文学部の田中英登教授が実証実験を共同で実施しました。
この研究結果はどこで発表予定ですか？
第80回日本体力医学会大会で発表予定です。
今後の展望としてどのような点が挙げられていますか？
パーソナライズされた冷却制御（皮膚温度や心拍数に合わせた自動調整）による効率と快適性の向上や、専門家による熱中症対策としての継続的な職場環境改善が期待されています。