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 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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