組立作業における部品取扱作業の筋負担評価とその応用

摘要

The purpose of this study is the development of the evaluation index that can be used to evaluate the muscle load of a worker performing unit assembly work. In addition, the index can suggest improvements in work habits to reduce the muscle load of a worker. Specifically, an experimental model is constructed, which is based on the highest appearance rate of factors that contribute to muscle load in parts handling work in unit assembly work. An experiment to measure muscle load is performed using electromyogram(EMG) activities. From the results, the evaluation index that can easily identify the muscle load in unit assembly work is presented. Furthermore, measures to reduce the work load on a unit assembly worker are considered on the basis of the highest appearance rates identified by the evaluation index.%本論文の目的は，ュニッ卜組立作業における作業者の筋負担を把握できる評価指標の構築と，それを用いて作業者の筋負担を軽減した作業改善を行うことである。具体的には，ュニッ卜組な作業で最も多く出現率が高かった部品取极作業を基にした実験作業モデルを構築し，筋電計を用いて筋負担の実験を行った。それにより，ュニット組立作業の筋負担を容易に把握できる評価指標を提示し，その結果から生産現場で筋負担を軽減した作業改善を実施した。さらに，評価指標と改善結果を基に，ュニット組立作業における作業者の作業負担の軽減方策にっいて検討を行った。