An Ergonomic Assessment and Design Intervention on Mud-Transfer Activity in Brick-Making Industry, India
The brick industry in India is highly labour-intensive employing about 15 million workers, and is characterized by the use of manual labour, primitive and age-old technology. Mud transfer is a sub-activity among the brick-moulding activity. During mud transfer, workers handled 7000 kg (350 kg*20 trip) load every day beside their main brick-moulding activity. During the unloading of the mud, they put both the hands above shoulder level and at the same time they need to pull the trolley to back and make an aisle of mud. This unloading method accumulates high-level postural stress on the shoulder and arms. This awkward posture creates musculoskeletal disorders in associated muscle and pain in different body joints. The aim of the study is to change the work posture (unloading mud) ergonomically. One conceptual model of the mud-transfer trolley was made by using SolidWorks CAD software based on anthropometric data of brick kiln workers. The CAD drawing was then converted to a full-scale prototype for simulation study. The newly developed concepts were applied in the actual field which increase the productivity by delaying the physiological fatigue.
KeywordsMud-transfer trolley Ergonomics study Brick kiln industry
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