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Ergonomic Design and Evaluation of Cloth-Pulling Devices for Praewa Silk Weavers
Wuttichai Yota1, Manida Swangnetr Neubert2,3, Teeraphun Kaewdok4,5
1Department of Medical Engineering, Thammasat School of Engineering, Thammasat University, Khlong Luang, Pathum Thani, 12121, Thailand.
Background:
Traditional weaving professionals pull cloth manually during the handloom process, which can lead to several unnoticed musculoskeletal disorders. The aim of this study was to design and evaluate the effectiveness of cloth-pulling devices for Praewa silk weavers in Thailand.
Methods:
An experimental trial was conducted using surface electromyography to evaluate weavers' muscle activity, productivity and perceived satisfaction during the Praewa silk-pulling process while employing traditional cloth pulling, using a standard cloth-pulling device and using an ergonomic prototype cloth-pulling device.
Results:
The results showed that the levels of muscle activity and hand activity with the prototype design were generally lower than those with traditional cloth pulling and with the standard cloth-pulling device (p < 0.01). There was a significant preference for the prototype, based on productivity and perceived satisfaction (p < 0.01).
Conclusions:
The new cloth-pulling device was found to be both applicable and well accepted by the weavers. It is recommended that future research include ergonomic assessments such as muscle activity and fatigue measurements during actual field production to further refine the tool design. Additionally, workstation modifications and improvements to working conditions should be explored to enhance overall ergonomics and worker well-being in the weaving industry Practical implementation of these recommendations may contribute to increased productivity and reduced work-related discomfort among weavers.
