engleski

ANALYSIS OF THE STATODYNAMIC LOAD ON WORKERS USING THE RULA METHOD IN THE TECHNOLOGICAL SEWING PROCESS

In the technological sewing process, the work is performed in a sitting position, whereas the worker uses the trunk and the hands to handle workpieces, and the feet to control the sewing machine speed. When performing technological sewing operations at the sewing machine, the worker often performs work in a forced posture of the body and head, which leads to non- physiological sitting, isometric load on the lower limbs and significant load on the hands and fingers. An unfavourable working posture leads to load, fatigue and diseases of the musculoskeletal system. By using the ErgoFellow computer system RULA module (Rapid Entire Body Assessment) the working postures of the worker performing the technological operation of sewing the back and front part of the men's jacket in the real production process were analysed. The analysis revealed that the body loads were caused by unfavourable working postures. The results obtained by the analysis indicate the presence of increased forward flexion of the spine and head in certain technological procedures and the load on the upper arm-forearm-hand system. A proposal was made to redesign the existing workplace, which would reduce workload and fatigue and increase productivity.

technological process of garment sewing, RULA method, work load

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