Design and Evalution of Handtool--an example of improving wire-tying operation

• Main Authors: Lee Chihhui, 李芝慧
• Other Authors: Li Kaiway
• Format: Others
• Language: zh-TW
• Published: 2000
• Online Access: http://ndltd.ncl.edu.tw/handle/15460703707047180287

碩士 === 中華大學 === 工業工程與管理研究所 === 88 === Wire-tying of pipeline on construction sites is a commonly performed task for pipeline workers. When tying pipelines, workers use pliers to grip and twist wires. When twisting, re-petitive wrist deviations are found. The unnatural postures under such conditions expose workers to ergonomic risk of musculo-skeletal injuries of the hand. The aim of this research was to improve the design of a hand tool that was used to twist the wire. Design and development of a wire-tying tool would reduce the unnatural posture when task of wire-tying was performed. Three wire-tying hand tools were developed and designed. These tools together with pliers were evaluated in wire-tying in the labora-tory. The results of the experiment showed that the newly des-igned hand tools were effective in reducing unnatural hand/wrist postures during wire-tying. The load of the forearm muscle were also lower when using these tools as compared with pliers.