アルミ鋳造品製造工程における作業者の手腕振動ばく露の実態

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  • 柴田 延幸
    (独)労働安全衛生総合研究所 人間工学・リスク管理研究グループ
  • 永田 智久
    産業医科大学 産業生態科学研究所 産業保健経営学研究室
  • 塩田 直樹
    宇部興産株式会社 総務・人事室 健康管理センター 健康管理室

書誌事項

タイトル別名
  • Hand-Arm Vibration Exposure of Workers in Aluminum Die-casting
  • アルミ チュウゾウヒン セイゾウ コウテイ ニ オケル サギョウシャ ノ シュワン シンドウ バクロ ノ ジッタイ

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説明

The hand-arm vibration exposure level of workers who occupationally use hand-held power tools was measured in four operating processes of aluminum-die-cast manufacturing. Also the workers orally answered questions regarding the daily exposure time to hand-arm vibration caused by the use of hand-held power tools, subjective symptoms in the hand-arm during / after daily tool operation, and countermeasures used to reduce vibrations on the to the hand-arm system. According to vibration dose evaluation based on the daily equivalent vibration exposure, the exposure limit durations were a little more than 1 hour for polishing operation in the finishing process and less than 1 hour for final polishing in the inspection section. Actually the workers in these sections are engaged in polishing, using the tools for 5 hours in a day. Almost all of the tool operators complained of temporary fatigue and numbness of the hand during / after the daily tool operation. However no use of anti-vibration gloves was observed in these workplaces. The results suggest the current workplaces require the systematic control of hand-arm vibration exposure based on the concept of energy-equivalent daily vibration exposure, which includes educational orientation on the use of anti-vibration gloves.

収録刊行物

  • 労働安全衛生研究

    労働安全衛生研究 5 (2), 79-86, 2012

    独立行政法人 労働者健康安全機構 労働安全衛生総合研究所

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