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行動版 | English
 
 
名稱 Design and Evaluation of a Fixture used For Powered Wire-Tying Hand Tools
類型 會議論文
年份 2003
著作人 Kai Way Li;Ching Jiang Wan
摘要 Using metal wire to tie components together is common. The wire-tying task, accomplished using pliers, involves repetitive forceful exertion and awkward wrist postures. In this research, the use of a powered screwdriver with a specially designed fixture for clamping and twisting metal wires was introduced. A laboratory experiment to simulate the wire-tying task using two power screwdriver-fixture combinations was performed. The experimental results showed that the normalized EMG of the flexor digitorum superficialis muscle and flexor carpi ulnaris muscle of the right arm were significantly (p<0.001) reduced when using the powered driver-fixture combinations compared to using pliers. Using the powered driver-fixture combinations requires only 28% of the time to complete each wire-tying compared to using pliers. The numbers of awkward wrist postures, including extension and ulnar deviation were also significantly decreased when using the powered driver-fixture combinations. The subjective response of the subjects, including muscular exertion level, muscular discomfort, ease of use, and total satisfaction all favored the powered driver-fixture combinations, compared to pliers in performing the wire-tying task.
關鍵字 fixture;hand tool design;wire-tying task
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